<!DOCTYPE html>
<html lang="zh_CN">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!--引入 css文件-->
    <link rel="stylesheet" href="./iconfont.css">

    <style>
        span,i{
            font-size: 50px !important;
            color: red;
        }
    </style>

</head>
<body>
<span class="iconfont icon-wechat"></span>
<i class="iconfont icon-qq"></i>
<i class="iconfont icon-weibo"></i>
</body>
</html>